I recently bought a Steam Controller and thought Outerra would be the perfect place to test out all of it's functions, but unfortunately things are not going to plan.
To get access to controller configuration during the game you must add outerra (or any non-steam) game to your steam library and launch it in Big Picture mode. I did this and it launches the game fine, but when I look at the controller setup page in Outerra it says "No controllers detected". I can access Steam's controller setup but only button presses and mouse input do anything in game, none of the analogue axis work at all.
It worked perfectly well using my sidewinder joystick and even my PS3 controller emulated as an xbox controller. As I understand it the reason may be that joysitcks tend to be detected as xinput, but the steam controller is seen by windows as a HID. Is there a workaround for this kind of thing?